Struct Cache 

pub struct Cache<K, V> { /* private fields */ }

High-performance in-memory cache with TTL and LRU eviction

Implementations

impl<K: Hash + Eq + Clone, V: Clone> Cache<K, V>

pub fn new(max_size: usize) -> Self

Create a new cache with specified maximum size

pub fn with_ttl(max_size: usize, default_ttl: Duration) -> Self

Create a new cache with TTL support

pub async fn insert(&self, key: K, value: V, ttl: Option<Duration>)

Insert a value with optional custom TTL

pub async fn get(&self, key: &K) -> Option<V>

Get a value from the cache

pub async fn contains_key(&self, key: &K) -> bool

Check if a key exists in the cache (without updating access stats)

pub async fn remove(&self, key: &K) -> Option<V>

Remove a key from the cache

pub async fn clear(&self)

Clear all entries from the cache

pub async fn len(&self) -> usize

Get current cache size

pub async fn is_empty(&self) -> bool

Check if cache is empty

pub async fn stats(&self) -> CacheStats

Get cache statistics

pub async fn reset_stats(&self)

Reset cache statistics

pub async fn get_or_insert<F, Fut>(&self, key: K, f: F) -> V

where F: FnOnce() -> Fut, Fut: Future<Output = V>,

Get or insert a value using a closure

pub async fn get_or_insert_with_ttl<F, Fut>( &self, key: K, f: F, ttl: Duration, ) -> V

where F: FnOnce() -> Fut, Fut: Future<Output = V>,

Get or insert a value with custom TTL using a closure

Trait Implementations

impl<K: Debug, V: Debug> Debug for Cache<K, V>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.